Chemistry of Pyrethrum Plant

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Questions and Answers

What is the principal cultivated source of Pyrethrum flower?

  • India
  • Kenya (correct)
  • Brazil
  • Japan

Which active constituent is NOT found in Carthamus tinctorius petals?

  • Pyrethrin (correct)
  • Safflor yellows A and B
  • Carthamin
  • Isocarthamin

What altitude range is favorable for Pyrethrum cultivation?

  • 0-500 m
  • 1900-2700 m (correct)
  • 600-1000 m
  • Above 3000 m

For how many months does the collection of Pyrethrum flower take place?

<p>9 months (D)</p> Signup and view all the answers

In Iranian folklore medicine, what are the recommended uses of Safflower?

<p>Laxative effects and treating rheumatism (B)</p> Signup and view all the answers

Which of the following is NOT an active constituent isolated from Carthamus tinctorius petals?

<p>Chlorophyll (C)</p> Signup and view all the answers

What are the key active constituents found in Pyrethrum flowers that contribute to their insecticidal properties?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following cell types in Pyrethrum flowers are responsible for producing the insecticidal esters?

<p>Oil glands, resin ducts, and mesophyll cells (A)</p> Signup and view all the answers

Which of the following is NOT a characteristic of the powder obtained from Pyrethrum flowers?

<p>Presence of T-shaped hairs (C)</p> Signup and view all the answers

Which of the following is the alcohol component of the pyrethrins found in Pyrethrum flowers?

<p>Pyrethrolone (A)</p> Signup and view all the answers

Which of the following is NOT a key active constituent found in Pyrethrum flowers?

<p>Safflower (D)</p> Signup and view all the answers

Which of the following statements is true about the constituents of chamomile flower-heads?

<p>They are required to contain at least 0.4% of a blue volatile oil. (A)</p> Signup and view all the answers

Which of the following statements is true about the formation of chamazulene in chamomile?

<p>Chamazulene is formed from a sesquiterpene lactone called matricin during steam distillation. (D)</p> Signup and view all the answers

Which of the following statements is incorrect about the constituents of chamomile?

<p>The dried ligulate florets contain less than 0.3% of free apigenin. (D)</p> Signup and view all the answers

What is the primary use of Anthemis nobilis Matricaria flowers mentioned in the text?

<p>For their anti-inflammatory and spasmolytic properties. (C)</p> Signup and view all the answers

Which of the following statements is true about the ulcer-protective properties of German chamomile?

<p>They have been ascribed to the bisabolol-type constituents. (B)</p> Signup and view all the answers

What is mentioned in the text as an allied drug of chamomile?

<p>Chrysanthemum parthenium (L.) Bernh. (A)</p> Signup and view all the answers

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